JIS SKS95M Oil-hardening Cold Work Tool Steel Flange

1,We Manufacturing processes are primarily classified into four types: 1:Forging, 2:Casting, 3:Cutting, 4:Rolling. 2,We can manufacture in accordance with these standards. Standards: GB Series (Chinese Standards), JB Series (Machinery Standards), HG Series (Chemical Industry Standards), ASME B16.5 (American Standards), BS4504 (British Standards), DIN (German Standards), and JIS (Japanese Standards). Internationally, there are two primary systems of pipe flange standards: the European system, represented by the German DIN standards (including those of the former Soviet Union), and the American system, represented by the US ANSI pipe flange standards. Other common standards include: the Chinese Ministry of Machinery Industry standards (JB series), the Ministry of Chemical Industry standards (HG series), the Chinese National Standard *GB/T 9112–9124-2010 Steel Pipe Flanges*, as well as US standards (ASME B16.5), British standards (BS4504), German standards (DIN), Japanese standards (JIS), and marine standards (CBM), among others. The nominal pressure ratings for the PN series are designated by "PN" and comprise the following nine levels: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, and PN160. The nominal pressure ratings for the Class series are designated by "Class" and comprise the following six levels: Class150, Class300, Class600, Class900, Class1500, and Class2500. Flange Classification 1. **According to Chemical Industry Standards:** Flanges are classified as follows: Plate Flat Welding Flange (PL), Necked Flat Welding Flange (SO), Necked Butt Welding Flange (WN), Integral Flange (IF), Socket Welding Flange (SW), Threaded Flange (Th), Butt Welding Ring Loose Flange (PJ/SE), Blind Flange (BL), Flat Welding Ring Loose Flange (PJ/PJ), and Lined Blind Flange (BL(s)). 2. **According to Petrochemical (SH) Industry Standards:** Flanges are classified as follows: Threaded Flange (PL), Butt Welding Flange (WN), Flat Welding Flange (SO), Socket Welding Flange (SW), Loose Flange (LJ), and Blind Flange (no specific designation). 3. **According to Machinery (JB) Industry Standards:** Flanges are classified as follows: Integral Flange, Butt Welding Flange, Plate Flat Welding Flange, Butt Welding Ring Plate Loose Flange, Flat Welding Ring Plate Loose Flange, Lap Joint Ring Plate Loose Flange, and Blind Flange. 4. **According to Connection Method/Type:** Flanges are classified as follows: Plate Flat Welding Flange, Necked Flat Welding Flange, Necked Butt Welding Flange, Socket Welding Flange, Threaded Flange, Blind Flange, Necked Butt Welding Ring Loose Flange, Flat Welding Ring Loose Flange, Ring-Type Joint (RTJ) Flange and Blind Flange, Large-Diameter Plate Flange, Large-Diameter High-Neck Flange, Figure-8 Blind Plate, Butt Welding Ring Loose Flange, etc. 5. **According to the Component Being Connected:** Flanges can be classified into Vessel Flanges and Pipe Flanges. 6. **According to Structural Type:** Flanges include Integral Flanges, Threaded Flanges, Flat Welding Flanges, Butt Welding Flanges, Lap Joint (Loose/Swivel) Flanges, and Blind Flanges. A flange—also referred to as a flange plate or rim—is a component used to connect shafts to one another, or, more commonly, to join the ends of pipes. Flanges are also utilized at the inlet and outlet ports of equipment to facilitate connections between two devices—for instance, the flange on a speed reducer. A "flange connection" or "flanged joint" refers to a detachable joint assembly comprising three interconnected elements—a flange, a gasket, and bolts—that together form a sealed structural unit. In the context of piping systems, a "pipe flange" specifically denotes a flange used for plumbing within the installation; when applied to equipment, it refers to the inlet or outlet flange of that specific device. Flanges feature a series of holes through which bolts are inserted to securely fasten the two flanges together, while a gasket placed between the flanges ensures a leak-proof seal. Flanges are broadly categorized into three types: threaded (screw-in) flanges, welded flanges, and clamp-type flanges. Flanges are invariably used in pairs; threaded flanges are suitable for low-pressure piping applications, whereas welded flanges are required for systems operating at pressures exceeding 4 kilograms per square centimeter. A sealing gasket is inserted between the two flange plates, which are then firmly secured using bolts. The thickness of a flange—as well as the specifications of the bolts used to fasten it—vary depending on the specific pressure rating required for the application. When connecting equipment such as water pumps or valves to piping systems, the corresponding connection points on these devices are often manufactured in the shape of a matching flange; this method of attachment is also referred to as a "flange connection." Generally, any connecting component that utilizes bolts to join and seal the perimeters of two flat surfaces—such as the joints in ventilation ducts—is termed a "flange"; such components may collectively be classified as "flange-type parts." However, since such a connection often constitutes merely a *portion* of a larger device—for instance, the interface between a flange and a water pump—it would be inappropriate to classify the entire water pump itself as a "flange-type part." Conversely, smaller components—such as valves—that feature such flanged interfaces may indeed be appropriately categorized as "flange-type parts." -:- For detailed product information, please contact sales. -: JIS SKS95M Oil-hardening Cold Work Tool Steel Flange Product Information -:- For detailed product information, please contact sales. -: JIS SKS95M Oil-hardening Cold Work Tool Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

JIS SKS95M Oil-hardening Cold Work Tool Steel Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: JIS SKS95M Oil-hardening Cold Work Tool Steel** **Overview** JIS SKS95M is a high-carbon, high-chromium, oil-hardening cold work tool steel classified under the Japanese Industrial Standards (JIS). As a member of the **SKS series (tool steels for special purposes)**, SKS95M is specifically formulated for **excellent wear resistance and good dimensional stability** during heat treatment. The “M” suffix indicates its optimized composition for reliable oil quenching, which minimizes the risks of distortion and cracking compared to water-hardening steels. It is a versatile and cost-effective steel for a wide range of cold working applications requiring high surface hardness. **Key Advantages** * **Superior Wear Resistance:** High carbon and chromium content form abundant hard carbides, providing excellent resistance to abrasive wear. * **Good Dimensional Stability:** Oil quenching results in less distortion and lower risk of cracking, making it suitable for complex shapes and precision tools. * **Deep Hardening Penetration:** Good hardenability allows it to achieve uniform hardness through thicker cross-sections. * **Good Machinability (in annealed state):** Can be readily machined, shaped, and engraved prior to final hardening. * **Cost-Effective:** Offers a balanced performance profile at a competitive price point for many cold work applications. **International Designations & Standards** * **JIS (Japan):** SKS95M * **ISO (International):** **~105WCr6** (This is the closest common ISO equivalent, with some compositional variance. Always verify with technical datasheets). * **ASTM (USA):** **~O2** (AISI/SAE O2 is a very similar manganese-chromium oil-hardening steel and is considered the **functional equivalent** in most applications). * **DIN (Germany):** **1.2510** (Equivalent to ~105WCr6 / O2). * **GB (China):** **~CrWMn** (A similar oil-hardening steel, though composition ranges may differ). *(Note: SKS95M, ISO 105WCr6, AISI O2, and DIN 1.2510 are largely interchangeable in terms of application and heat treatment. Minor differences exist in composition, primarily in vanadium and tungsten content.)* --- #### **1. Chemical Composition (Typical, Weight %)** The balanced alloying of carbon, chromium, and tungsten provides the core properties of wear resistance and hardenability. | Element | Content (%) | Role & Effect | | :--- | :--- | :--- | | **Carbon (C)** | 0.90 - 1.00 | Primary element for high hardness and wear resistance through carbide formation. | | **Silicon (Si)** | 0.10 - 0.30 | Deoxidizer, improves strength and tempering resistance. | | **Manganese (Mn)** | 0.90 - 1.20 | Increases hardenability, allowing for oil quenching, and stabilizes austenite. | | **Chromium (Cr)** | 0.50 - 1.00 | Enhances hardenability, wear resistance, and provides mild corrosion resistance. | | **Tungsten (W)** | 0.50 - 1.00 | Forms hard, stable carbides that improve wear resistance and help refine grain size. | | **Vanadium (V)** | ≤ 0.20 (Optional/Trace) | If present, refines grain and improves toughness and wear resistance. | | **Phosphorus (P)** | ≤ 0.030 | Residual impurity (kept low for better toughness). | | **Sulfur (S)** | ≤ 0.030 | Residual impurity. Sometimes controlled for improved machinability. | | **Iron (Fe)** | Balance | Base metal. | --- #### **2. Physical & Mechanical Properties** *Note: Properties are highly dependent on heat treatment condition.* | Property | Value / Description | Condition / Note | | :--- | :--- | :--- | | **Density** | ~7.83 g/cm³ (0.283 lb/in³) | Annealed | | **Melting Point** | ~1420°C (2588°F) | Approximate | | **Thermal Conductivity** | ~45 W/m·K | At 20°C | | **Coefficient of Thermal Expansion** | ~12.5 x 10⁻⁶/K | 20-100°C | | **Hardness (Annealed)** | ~192-228 HB | Brinell, typical annealed/spheroidized condition for machining. | | **Hardness (Hardened & Tempered)** | **58 - 62 HRC** | Typical working hardness range. | | **Tempering Temperature Range** | **150°C - 250°C (300°F - 480°F)** | For maximum hardness. Can be tempered up to ~400°C (750°F) for increased toughness at lower hardness. | | **Machinability** | ~70-75% (of 1% carbon steel) | Good machinability in the annealed state. | --- #### **3. Product Applications** SKS95M/O2 steel is widely used for various cold work tooling that requires a combination of good wear resistance and stability. * **Blanking & Piercing Tools:** Medium-duty punches, dies, and stripper plates for sheet metal. * **Forming Tools:** Bending, forming, and drawing dies for metals. * **Cutting & Slitting Tools:** Knives, blades, and shear blades for non-ferrous metals, paper, plastic, and wood. * **Gauges & Precision Parts:** Master gauges, jigs, fixtures, and other wear-resistant mechanical components requiring dimensional stability. * **Thread Rolling & Knurling Tools:** Dies for cold forming of threads and patterns. * **Molds:** Plastic injection molds for non-abrasive resins, and zinc die-casting molds (prototype or low-volume). --- #### **4. Heat Treatment Guidelines (Typical)** * **Preheating:** Recommended at 650°C (1200°F) to minimize thermal shock and distortion. * **Austenitizing (Hardening):** **790°C - 820°C (1450°F - 1510°F)**, soak thoroughly, then quench in **warm oil (40-80°C)**. * **Tempering:** **Immediately after quenching.** Temper at **150°C - 250°C (300°F - 480°F)** for 1-2 hours per inch of thickness to achieve maximum hardness (58-62 HRC). **Note:** A slight secondary hardness peak may occur around 200°C-250°C. * **Stress Relieving:** For complex tools, a stress relief cycle at 600-650°C after rough machining (before final hardening) is highly recommended. * **Annealing:** Heat to 750-780°C, slow furnace cool to ~500°C, then air cool to achieve a spheroidized structure (~200 HB) for optimal machinability. **Disclaimer:** This information is for reference purposes. The exact heat treatment parameters (temperature, time, quenching medium) depend on the specific tool geometry, desired properties, and steelmaker’s recommendations. Always consult the material data sheet from your steel supplier and a professional heat treater for critical applications. -:- For detailed product information, please contact sales. -: JIS SKS95M Oil-hardening Cold Work Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <6704 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: JIS SKS95M Oil-hardening Cold Work Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of JIS SKS95M Oil-hardening Cold Work Tool Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers JIS SKS95M Oil-hardening Cold Work Tool Steel Flange -:- For detailed product information, please contact sales. -:

Packing of JIS SKS95M Oil-hardening Cold Work Tool Steel Flange -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Flange drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3175 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition